Advertisements
Advertisements
प्रश्न
Balance the following simple equation:
Zn + HCl → ZnCl2 + H2
Advertisements
उत्तर
Zn + 2HCl → ZnCl2 + H2
APPEARS IN
संबंधित प्रश्न
Convey the following information in the form of a balanced chemical equation:
“An aqueous solution of ferrous sulphate reacts with an aqueous solution of sodium hydroxide to form a precipitate of ferrous hydroxide and sodium sulphate remains in solution.”
Give one example of an exothermic reaction.
Which of the following does not involve a chemical reaction?
Balance the following chemical equation:
\[\ce{Pb(NO3)2_{(s)} ->[Heat] PbO_{(s)} + NO2_{(g)} + O2_{(g)}}\]
Explain the following reaction with one suitable example .
Decomposition reaction
A student weighed some raisins and recorded the weight as ‘x’. She then soaked the raisins in distilled water. After about 2 hours she removed the raisins, wiped them dry and weighed them again, and recorded that as ‘y’. The percentage of water absorbed by raisins may be determined using the relationship.
Write the chemical equation for the following word equation and balance them.
Calcium + Nitrogen → Calcium nitride
Give a balanced equation for addition of iron to copper [II] sulphate solution. State the change in colour seen.
Balance the following simple equation:
Al + H2SO4 → Al2(SO4)3 + H2
Balance the given chemical reaction as per the instructions below.
\[\ce{NaOH + H2SO4 -> Na2SO4 + H2O}\]
Balance the equation with proper coefficient and rewrite the equation.
